Worked on localizing the YouTube Music user interface within the th-ch/youtube-music repository, focusing on delivering Estonian translations to enhance accessibility for regional users. Utilized JSON for managing translation resources and integrated Weblate to streamline the i18n workflow, enabling collaborative translation and efficient updates. The project involved translating 160 out of 463 UI strings, covering labels, descriptions, and menu items, and laid the foundation for full localization. This effort aimed to support multilingual user experiences and facilitate regional expansion. The work demonstrated skills in i18n, localization, and translation, with a technical emphasis on workflow integration and resource management.